Intersil HFA3841CN

Overview

The Intersil HFA3841CN Wireless LAN Medium Access Controller is part of the PRISM® Enterprise 2.4GHz WLAN chip set. The HFA3841CN directly interfaces with the Intersil HFA386x family of Baseband Processors, offering a complete end-toend chip set solution for wireless LAN products. Protocol and PHY support are implemented in firmware to allow custom protocol and different PHY transceivers.

• IEEE802.11 Standard Data Rates: 1, 2, 5.5 and 11Mbps• Part of the Intersil PRISM Wireless LAN Chip Set• Full Implementation of the MAC Protocol Specified in IEEE Std. 802.11-1999 and the 802.11b Draft Standard• Host Interface Supports Full 16-Bit Implementation of PC Card 95, also ISA PnP with Additional Chip• Host Interface Provides Dual Buffer Access Paths• External Memory Interface Supports up to 4M bytes RAM• Internal Encryption Engine Executes IEEE802.11 WEP• Low Power Operation; 25mA Active, 8mA Doze, <1mA Sleep• Operation at 2.7V to 3.6V Supply• 3V to 5V Tolerant Input/Outputs• 128 Pin LQFP Package Targeted for Type II PC Cards• IEEE802.11 Wireless LAN MAC Protocol Firmware and Microsoft® Windows® Software Drivers

Features